关于IOS中UILocationNotification,为什么显示不出来本地通知

用的是xcode8，看下面的代码，还需要设置什么东西么，运行在iPhone 7上

• (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
  // Override point for customization after application launch.
  UIWindow * window = [[UIWindow alloc]init];
  window.frame = [UIScreen mainScreen].bounds;
  self.window.rootViewController = [[ViewController alloc]init];

  [window makeKeyWindow];

  [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound categories:nil]];
  

  UILocalNotification * notification = [[UILocalNotification alloc]init];
  notification.fireDate = [NSDate dateWithTimeIntervalSinceNow:10];//10秒后触发
  notification.repeatInterval = 2; //重复次数
  //设置通知的一些属性
  notification.alertBody = @"有一条新的消息请注意查收";//通知主题，外部显示的内容
  notification.alertTitle = @"新的消息";
  notification.applicationIconBadgeNumber = 66; //应用图标右上角显示消息的个数；
  notification.alertAction = @"打开应用";//待机界面的滑动动作提示
  notification.alertLaunchImage = @"Default";//通过点击通知打开应用时启动的图片，这里使用的是开启应用时的图片
  // notification.soundName = @""; 通知声音
  //设置用户信息
  notification.userInfo = @{@"id":@1,@"user":@"Yibo Wang"};//绑定到通知上的其他附加信息
  //调用通知
  [[UIApplication sharedApplication]scheduleLocalNotification:notification];
  return YES;
  }

你那个授权方法可能失效了，改成下面这个试试

                        // ios8后，需要添加这个注册，才能得到授权
            if ([[UIApplication sharedApplication] respondsToSelector:@selector(registerUserNotificationSettings:)]) {
                UIUserNotificationType type =  UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound;
                UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:type
                                                                                         categories:nil];
                [[UIApplication sharedApplication] registerUserNotificationSettings:settings];
                // 通知重复提示的单位，可以是天、周、月
                notification.repeatInterval = NSCalendarUnitDay;
            }